SE03XL HP Pavilion 14 Compatible Battery 11.55V 3500mAh
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SE03XL HP Pavilion 14 Compatible Battery 11.55V 3500mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
SE03XL HP Pavilion 14 Compatible Battery 11.55V 3500mAh - is backordered and will ship as soon as it is back in stock.
Voltage
11.55V
Amp
3500mAh
HP Pavilion 14-AL000 Series — 11.55V Li-ion Replacement Battery (SE03XL)
This is an 11.55V, 3500mAh (40.43Wh) Li-ion replacement battery for the HP Pavilion 14-AL000 series laptop. It fits the Pavilion 14-AL000 and over 230 related 14-inch Pavilion models including the AL001ng, AL003ng, and AL004ng. OEM cross-references include SE03XL, HSTNN-LB7G, HSTNN-UB6Z, and TPN-Q171.
- Pavilion 14-AL series compatibility: These models share the same three-cell 11.55V battery architecture, identical connector pinout, and the same BMS handshake protocol — which is why one battery covers the full AL000 range despite minor regional hardware variations.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Pavilion 14-AL unit. The BMS completed full charge termination cleanly, voltage held stable across the draw curve, and the BIOS battery status reported without fault flags after the initial learn cycle.
- Post-install calibration on the Pavilion 14-AL: After fitting this cell, run the laptop down to automatic hibernate under normal use — do not force shutdown — then charge it uninterrupted to 100%. This completes the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on this platform.
BIOS reporting battery health as poor immediately after fitting the SE03XL
The Pavilion 14-AL stores learned capacity data in BIOS-managed EEPROM tied to the old cell. When a new cell goes in, that stored data no longer matches the actual charge curve, so the BIOS flags the battery as degraded or unknown. This is a firmware calibration state, not a fault with the replacement cell. One full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite its learned values against the new cell. After two or three cycles the health status will update correctly.
Laptop shuts down at 20–30% charge shown on the Pavilion 14-AL
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The OS reads a voltage level that looks like 20–30% remaining, but the cell hits its minimum voltage cliff under combined CPU and display load before the gauge catches up. The fix is the same calibration cycle — discharge fully to hibernate cutoff, then charge uninterrupted to 100%. After two full cycles, the fuel gauge IC realigns its reference points and the shutdowns stop. If the problem persists past three cycles, check BIOS battery health at startup — the cutoff voltage floor should sit at 10.8V minimum.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: HP
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My HP Pavilion 14-AL shows the new battery as "0% available (plugged in, not charging)" right after I installed it — what's wrong?
The BIOS still holds EEPROM data from the old cell and hasn't recognised the new one's state of charge yet. Plug in the charger, leave it connected for 10–15 minutes without pressing the power button, then do a full shutdown and cold boot. In most cases the BIOS handshake completes on that first boot and charging resumes normally. If it doesn't, enter BIOS setup on boot — this resets the battery controller and clears the stale charge state.
Windows Battery Report is showing the SE03XL's design capacity as much lower than 40.43Wh — is the cell actually faulty?
The Windows Battery Report reads Wh data from the cell's EEPROM, and the value written there reflects the rated chemistry spec rather than the measured capacity of the physical cells. A difference between the EEPROM-reported figure and the 40.43Wh in the product spec is a data mismatch, not a cell fault. Run two full discharge-to-hibernate and charge-to-100% cycles — the fuel gauge IC will recalibrate against the actual charge curve, and the reported figure will converge closer to the real value. The practical test is whether the laptop holds charge across a normal workload, not what the EEPROM figure says.
Charging stops at 80% and won't go higher on the Pavilion 14-AL — is this a battery problem?
This is almost always a BIOS-controlled charge limit, not a cell fault. HP's battery care settings in BIOS (sometimes labelled "Battery Care Function" or "Optimised Battery Charging") cap charging at 80% to reduce long-term cell stress. Go into BIOS setup at startup, navigate to the Power or System Configuration tab, and set the charge limit to 100% or disable the battery care feature entirely. The cell itself has no internal 80% cap — the cutoff instruction comes from the firmware.
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